Researchers may have found our galaxy's missing companions, further bolstering science's most widely accepted cosmological ...

Our Milky Way could have many more satellite galaxies than we've detected so far. They're just too faint to be seen.

A groundbreaking study using the Hubble Space Telescope has revealed a truly astonishing discovery about our universe: it may ...

New supercomputer simulations suggest the Milky Way could be surrounded by dozens more faint, undetected satellite ...

The universe is full of awe-inspiring and perplexing galaxies, each with its own unique structure, behavior, and mysteries waiting to be unraveled. From the iconic ring-shaped Hoag's Object to the ...

Scientists predict up to 100 invisible galaxies may orbit the Milky Way, hiding just beyond our current detection limits.

The Milky Way could have many more satellite galaxies than scientists have previously been able to predict or observe, ...

A massive, spacetime-warping cluster of galaxies is the setting of today's NASA/ESA Hubble Space Telescope image. The galaxy ...

Galaxies, including the Milky Way, grow from thick, turbulent disks into layered structures. JWST’s images show this process ...

But in the past two decades, new types of black holes have been seen and astronomers are beginning to understand how they ...

Tony Tyson’s cameras revealed the universe’s dark contents. Now, with the Rubin Observatory’s 3.2-billion-pixel camera, he’s ...

New simulations suggest that dozens of ultra-faint “ghost” galaxies may be orbiting the Milky Way, hidden from current ...